Radiology, Vol 147, 485-490, Copyright © 1983 by Radiological Society of North America
Computed tomography of primary intrahepatic biliary malignancy
Y Itai, T Araki, S Furui, N Yashiro, K Ohtomo and M Iio
Fifteen patients with primary intrahepatic biliary malignancy
(cholangiocarcinoma in 13, biliary cystadenocarcinoma in two) were examined
by computed tomography (CT). The CT features were classified into three
types: (A) a well-defined round cystic mass with internal papillary
projections, (B) a localized intrahepatic biliary dilatation without a
definite mass lesion, and (C) miscellaneous low-density masses.
Intrahepatic biliary dilatation was noted in all cases of Types A and B and
half of those of Type C; dilatation of extrahepatic bile ducts occurred in
4/4, 1/3, and 0/8, respectively. CT patterns, such as a well-defined round
cystic mass with papillary projections or dilatation of intra- and
extrahepatic ducts, give important clues leading to a correct diagnosis of
primary intrahepatic biliary malignancy.
